16022785 maytag neptune drying center (dc) repair service manual

Neptune DC This Base Manual covers general informationRefer to individual Technical Sheetfor information on specific models

This manual includes, but isnot limited to the following:

MCE8000AYMCG8000AW

This manual is to be used by qualified appliancetechnicians only. Maytag does not assume anyresponsibility for property damage or personalinjury for improper service procedures done byan unqualified person.

16022785Revision 0

November 2003

2 16022785 Rev. 0 2003 Maytag Appliances Company

Important Notices for Servicers and ConsumersMaytag will not be responsible for personal injury or property damage from improper service procedures. Pride andworkmanship go into every product to provide our customers with quality products. It is possible, however, that duringits lifetime a product may require service. Products should be serviced only by a qualified service technician who isfamiliar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testinginstruments and the appropriate service information. IT IS THE TECHNICIANS RESPONSIBLITY TO REVIEW ALLAPPROPRIATE SERVICE INFORMATION BEFORE BEGINNING REPAIRS.

! WARNINGTo avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance to avoidelectrical shock.

To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased thisproduct. For further assistance, please contact:

Customer Service Support Center

CAIR CenterWeb Site Telephone Number

WWW.AMANA.COM .................................................1-800-843-0304WWW.JENNAIR.COM...............................................1-800-536-6247WWW.MAYTAG.COM...............................................1-800-688-9900

CAIR Center in Canada ............................................1-800-688-2002Amana Canada Product ............................................1-866-587-2002

Recognize Safety Symbols, Words, and Labels

DANGER!DANGERImmediate hazards which WILL result in severe personal injury or death.

WARNING!WARNINGHazards or unsafe practices which COULD result in severe personal injury or death.

CAUTION!CAUTIONHazards or unsafe practices which COULD result in minor personal injury, product or property

damage.

Important Information

2003 Maytag Appliances Company 16022785 Rev. 0 3

Important Information ...................................................... 2Important Safety Information........................................... 4General Information

Model Identification ..................................................... 8Serial Label Location ................................................... 8Model Nomenclature ................................................... 9Model Specifications ................................................. 10

Troubleshooting ProceduresTrouble Shooting General Symptoms ....................... 11Read Sensor Inputs ................................................... 12Membrane Keypad Utility .......................................... 13Upper/Lower Dryer Sub-System Check .................... 13Accessing Diagnostic Codes .................................... 13Diagnostic Codes ...................................................... 14Reset to Factory Default Conditions ......................... 14Sensor Bar Diagnostics ............................................ 15Consumer Codes ...................................................... 15View Cycle Statistics ................................................ 15Membrane Pad Continuity Checks............................ 16

Table of ContentsLogic Board Connectors ............................................ 17Relay Header Connections ........................................ 18Power And Relay Board Connectors ......................... 18

Disassembly ProceduresLower Door Reversal/Removal ................................... 19Door Hook Removal ................................................... 19Shaker Removal ........................................................ 19Console Removal ...................................................... 20Logic Board Removal ................................................ 21Front Access Panel Removal .................................... 21Tumbler Drum Removal ............................................. 23Heater Assembly Removal ........................................ 23Relay Board Removal ................................................ 24Blower And Motor Removal ....................................... 24Water Valve Removal ................................................ 25Steamer Blower Removal .......................................... 25Steamer Heater Removal ........................................... 26

Appendix AInstallation Instructions ............................................. 28

Appendix BUse And Care ............................................................ 41


Important Safety Information

WARNING!To avoid risk of fire, electric shock, serious injury, or death when using your dryer, follow these basic precautions:

21.Always read and followmanufacturers instructions onpackages of laundry aids. Heedall warnings or precautions. Toreduce risk of poisoning orchemical burns, keep productsaway from children at all times,preferably, in a locked cabinet.

22.Never operate dryer with guardsand/or panels removed.

23.Do not operate dryer withmissing or broken parts.

24.Do not bypass safety devices.25.Keep area around the exhaust

opening and adjacentsurrounding areas free fromaccumulation of lint, dust, anddirt.

26. Interior of dryer and exhaust ductshould be cleaned periodicallyby qualified service personnel.

27.Dryer will not operate withloading door open. DO NOTbypass door safety switch bypermitting dryer to operate withdoor open. Dryer will stoptumbling when door is opened.Do not use dryer if it does notstop tumbling when door isopened or starts tumblingwithout pressing or turning theSTART mechanism. Remove thedryer from use and callthe service person.

28.Remove laundry immediatelyafter the dryer stops.

29.ALWAYS follow the fabric careinstructions supplied by thegarment manufacturer.

1. Read all instructions beforeusing dryer.

2. Install dryer according toInstallation Instructions. Refer tothe Grounding Instructions in theInstallation Instructions forproper grounding of the dryer.

3. Do not dry articles that havebeen cleaned in, washed in,soaked in, or spotted withgasoline, dry-cleaning solvents,or other flammable or explosivesubstances. Vapors could igniteor explode.

4. Do not use dryer to dry clotheswhich have traces of anyflammable substance, such asvegetable oil, cooking oil,machine oil, flammablechemicals, thinner, etc., oranything containing wax orchemicals, such as mops andcleaning cloths. Flammablesubstances may cause fabric tocatch fire by itself.

5. Do not store or use gasoline orother flammable vapors andliquids near this or any otherappliance.

6. Do not allow children to play onor in dryer. Close supervision ofchildren is necessary whendryer is used near children, asafety rule for all appliances.

7. Before dryer is removed fromservice or discarded, removedoors to drying compartment.

8. Do not reach into dryer ifcylinder is revolving.

9. Do not install or store dryerwhere it will be exposed to waterand/or weather.

10.Do not tamper with dryercontrols.

11. Do not repair or replace any partof dryer or attempt any service,unless specifically recommendedin user-maintenance instructionsor in published user-repairinstructions that you understandand have skills to carry out, if youare a consumer.

12.To reduce risk of electric shock orfire, do not use extension cords oradapters to connect dryer toelectrical power source.

13.Use the dryer only for its intendedpurpose, drying clothes.

14.Always disconnect dryer fromelectrical supply beforeattempting any service.Disconnect power cord bygrasping the plug, not the cord.

15.Do not use heat to dry articlescontaining foam rubber orsimilarly textured rubberlikematerials.

16.Always clean the lint filter afterevery load. A layer of lint in thefilter reduces drying efficiency andprolongs drying time.

17.Use only fabric softeners orproducts to eliminate static thatare appropriate for automaticdryers.

18.Keep your dryer in good condition.Bumping or dropping dryer candamage safety features. Ifdamage occurs, have dryerchecked by qualified servicetechnician.

19.Replace worn power cords and/orloose plugs.

20.Do not tumble fiberglass curtainsand draperies unless the labelsays it can be done. If they aredried, wipe out the cylinder with adamp cloth to remove particles offiberglass.

Save These Instructions


Electrical Service InformationElectrical Dryers 240 VAC, 60 Hz, 30 Amps,

3wire or 4wire installations

Gas Dryers 120 VAC, 60 Hz, 20 Amps, 3wire installations

About Ground WiresIn the event of an electrical short circuit, a ground wirereduces the risk of electric shock by providing an escapewire for the electric current.Standard accepted color coding for ground wires is greenor green with a yellow stripe.Grounding wires and wires colored like grounding wiresare NOT to be used as current carrying conductors.

WARNING!To reduce the risk of fire, electric shock, serious injuryor death, all wiring and grounding must conform withthe latest edition of the National Electric Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1,and such local regulations as might apply. It is thecustomers responsibility to have the wiring and fuseschecked by a qualified electrician to make sure yourhome has adequate electrical power to operate thedryer.

WARNING!The California Safe Drinking Water and ToxicEnforcement Act of 1986 (Proposition 65) requires theGovernor of California to publish a list of substancesknown to the State of California to cause cancer orreproductive harm and requires business towarn consumers of potential exposures to suchsubstances.Users of this appliance are hereby warned that theburning of gas can result in low-level exposure to someof the listed substances, including benzene,formaldehyde and soot, due primarily to the incompletecombustion of natural gas or liquid petroleum (LP) fuels.Exhaust ducts should be kept free of obstructions andproperly exhausted dryers will minimize exposure.

WARNING!To avoid risk of personal injury or death due toelectrical shock:

Observe all local codes and ordinances. Disconnect electrical power to unit before servicing. Ground appliance properly. Check with a qualified electrician if you are not sure

this appliance is properly grounded. DO NOT ground to gas line. DO NOT ground to cold water pipe if pipe is

interrupted by plastic, non-metallic gaskets, or otherinsulating (non-conducting) materials.

DO NOT modify plug on power cord. If plug does notfit electrical outlet, have proper outlet installedby qualified electrician.

DO NOT have a fuse in the neutral or ground circuit.A fuse in the neutral or ground circuit could result inan electrical shock.

DO NOT use an extension cord with this appliance. DO NOT use an adapter plug with this appliance. DO NOT pinch power cord.

Gas Connection Information

WARNING!To avoid death, personal injury or property damage,from fire or explosion, information in this manual mustbe followed exactly.

Do not store or use gasoline or other flammable vaporsand liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electrical switch; do not use any

phone in your building. Immediately call your gas supplier from a neighbors

phone. Follow the gas suppliers instructions. If you cannot reach your gas supplier, call the fire

department.Installation and service must be performed by aqualified installer, service agency or the gas supplier.

WARNING!To reduce the risk of fire and exposure to combustiongases, the dryer MUST be exhausted to the outdoors.DO NOT exhaust dryer air into a window well, gas vent,chimney or enclosed, unventilated area, such as anattic, wall, ceiling, crawl space under a building orconcealed space of a building.



For proper operation at altitudes above2,500 feetThe natural gas valve spud orifice size must be reduced toensure complete combustion. See table.

AltitudeFt (M)

OrificeSize #

Partnumber

3000 (915) 43 5037786000 (1830) 44 587198000 (2440) 45 5037799000 (2740) 46 50378010000(3050) 47 503781

Gas ConnectionConnect gas supply to dryer using a new stainless steelflexible connector or hard pipe (check local codes)according to illustration. Test for leaks and check burnerflame after gas supply is connected. Dryer must be connected to type of gas as shown on

nameplate located in the door recess. Use pipe joint compound insoluble on LP (propane)

Gas, or Teflon tape, on all pipe threads. Purge air and sediment from gas supply line before

connecting it to the dryer. Before tightening theconnection, purge remaining air from gas line to dryeruntil odor of gas is detected. This step is required toprevent gas valve contamination.

Use a new stainless steel flexible connector only ifallowed by local codes (use A.G.A. certified connector).

3/8" NPT gas connection

1/8" NPT pipe plug(for checking inlet gas pressure)

Install Equipment shut-off valve within 6' (1.8 m) of dryer.

Black iron piping: Shorter than 20 (6.1 m) use 3/8 piping Longer than 20 (6.1) m) use 1/2 piping

Testing for Gas LeaksAfter final gas connection is made, turn on manual gasvalve and test all connections in gas supply piping for gasleaks. Leak testing of the appliance shall be conductedaccording to the manufacturers instructions.1. Place soap suds on connections.2. If bubbles appear, a leak is present. Shut off gas

supply valve.3. Tighten joint if leak is at factory fitting.

If leak is not at factory fitting, unscrew, apply morejoint compound, and tighten to correct leak.



Model IdentificationComplete registration card and promptly return. Ifregistration card is missing: For Maytag product call 1-800-688-9900 or visit the

Web Site at www.maytag.com For product in Canada call 1-866-587-2002 or visit the

Web Sites at www.maytag.com or www.jennair.comWhen contacting provide product information located onrating plate. Record the following:Model Number: ____________________Manufacturing Number: ____________________Serial or S/N Number: ____________________Date of purchase: ____________________Dealers name and address: ____________________

Serial Label is located in the upper left hand corner of thelower door opening.

ServiceKeep a copy of sales receipt for future reference or incase warranty service is required. To locate an authorizedservicer: For Maytag/Jenn-Air product call 1-800-462-9824 or

visit the Web Site at www.maytag.com orwww.jennair.com

For product in Canada call 1-866-587-2002 or visit theWeb Sites at www.maytag.com or www.jennair.com

Warranty service must be performed by an authorizedservicer. We also recommend contacting an authorizedservicer, if service is required after warranty expires.

Parts and AccessoriesPurchase replacement parts and accessories over thephone. To order accessories for your product call: For Maytag/Jenn-Air product call 1-800-462-9824 or

visit the Web Site at www.maytag.com orwww.jennair.com

For product in Canada call 1-866-587-2002 or visit theWeb Sites at www.maytag.com or www.jennair.com

Extended Service PlanWe offer long-term service protection for this new oven. Dependability PlusSM Extended Service Plan is

specially designed to supplement Maytags strongwarranty. This plan covers parts, labor, and travelcharges.Call 1-800-925-2020 for information.

General Information

4. Retest connection for leak after tightening or addingjoint compound.

Retest any connections that were disturbed.

L.P./PropaneDO NOT connect dryer to L.P./Propane gas servicewithout converting the gas valve. A Sales Accessory L.P./Propane Gas Conversion Kit 63-6766 must be installed.


General InformationDrying Center Nomenclature

Drying Center Nomenclature

M C E 8 0 0 0 A Y W

Brand A Amana C Magic Chief G Graffer &

Sattler H Hardwick J Jenn-Air M Maytag N Norge U Universal Y Crosley

Fuel G Gas E Electric

Listing W 120V-60hz Y 240V-60hz Z Canada 240V-60hz Y 220-240 V / 50-60 Hz

Feature Content 8000 Feature Package

Marketing Code This identifies which version of production the unit is.

Color W White Q Bisque

Product Type C Drying Center


General InformationUPPER DRYING CABINETCapacity (cu. ft.) 17.3Controls LEDDrying System BreezeCare

C.F. M. 80

R

RW

TLow 140 FExtra Low 110 F

Flat Dry Shelves 5

W

LOWER TUMBLE DRYER

Controls LEDDrying System GentleBreeze

C.F.M. 170Cycles 4

Wrinkle Release

W

TRegular 150 FMedium 145 FLow 140 FExtra Low 125 F

V

R

DRYING CENTER SPECIFICATIONS

Uncrated Dimensions: 33 1 2/ "w x 29"d x 74"h

Crated Dimensions: 36.8"w x 31.3"d x 76.3"h

Uncrated Weight: 245 lbs.Crated Weight: 260 lbs.

MODEL MCE/G8000


Troubleshooting Procedures! WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testingrequires power.

Troubleshooting Guide Maytag Neptune Drying Center

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

Will Not Run Will not start or run: All wires are hooked up to their corresponding

terminals. Dryer is plugged in. Blown fuse or circuit breaker. Door switch functional...door closed. Poor connection between membrane switch and logic

board, or faulty membrane switch. Use "Pd" utility to check function of membrane switch.

Faulty motor relay, use diagnostic utilities to manually operate relay.

Drive motor functional. Blown thermal fuse. Motor runs/ tumbler will not turn: Belt off or broken/damaged. Idler tension spring too weak or stretched. Idler pulley jammed or stuck. Runs a few minutes and then stops: Lint buildup around drive motor. Low voltage present. Blower impeller blocked in blower housing. Drive motor - start switch contacts stuck closed. Blows fuses or trips circuit breaker: Electric Models The amperage readings are at 240 volts. One line with

24 amps, and the other line with 21 amps. The neutral line will be at 3 amps. If the above amperages are present, then the house wiring, fuse box or circuit breaker should be suspected.

Shorted heating element to housing. Incorrect wiring or a wire shorting to ground. Drive motor winding shorting to ground. Gas Models During ignition the dryer will draw 7 amps. With the

burner ON, the dryer will draw 3 amps. If the dryer is drawing amperages above this, then the house wiring, fuse box or circuit breaker is suspected to be at fault.

Igniter harness loose and shorted to base. Incorrect wiring or wire shorted to ground. Open centrifugal switch in motor Drive motor winding shorting to ground. Will Not Dry Will not heat (motor runs): Open heating element. Hi-Limit trips easily or is open. Faulty Thermistor.

Faulty Heater Relays. Drive motor centrifugal start switch not allowing

voltage to gas valve or heating element. Will Not Dry (Gas Models) Poor Gas Ignition When the dryer is operated on a heat setting, the igniter should be energized and burner shall fire within 45 seconds at 120 VAC. The failure of a component in this system will usually be indicated by one of three symptoms: The igniter does not glow. If the igniter does not heat up, remove power and using an ohmmeter, check the following: Open flame sensor Open igniter Shorted booster coil Open wiring Igniter glows - No gas ignition. If the igniter heats up but the main burner flame is not ignited, remove power and using an ohmmeter, check the following: Open secondary coil Open holding coil Open wire harness The gas is ignited but the flame goes out. If a normal ignition takes place and after a short while the flame goes out, check for the following: Radiant sensor contacts opening prematurely. Weak gas valve coil may open when stressed by higher temperatures. Improper drying/clothes wrinkled/ rough texture/long dry time: Lint filter is not clean. Restriction in exhaust. Outside exhaust hood damper door stuck closed. Exhaust too long, too many elbows, flex ductwork

installed. Poor makeup air available for the dryer. Incorrect tumbler speed. Tumbler belt slipping. Blower impeller bound; check for foreign material in

blower area. Customer overloading dryer. Check clothing labels for fabric content and cycle

selected. Gas valve coil opens - weak point in coil opens when

stressed under heated conditions.


Troubleshooting Procedures

! WARNINGTo avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testingrequires power.

Clothes too wet due to insufficient spin out by washer. Faulty Sensor Bar. See Sensor Bar diagnostic section. Troubleshooting the Sensor-Dry circuit: Check for incorrect wiring of the electrical connector at

the electronic control board. Dryer runs for 2 minutes, jumps to a 1-minute cool

down and then stops. Open Sensor Dry circuit. Check Sensor Bar. Refer to Sensor Bar Diagnostics section.

Dryer does not shut off. Check sensor for continuity. If found, replace sensor bar or clean with alcohol. Some fabric softener sheets will coat the sensor bars.

Noisy and/Or Vibration Thumping. Check for loose tumbler baffle, rear

tumbler roller(s) worn or misaligned, out-of-round tumbler or high weld seam on tumbler.

Ticking. Check for loose wire harness or object caught in blower wheel area.

Scraping. Check for front or rear bulkhead felt seal out of position or worn tumbler front bearings.

Roaring - Check for blower wheel rubbing on blower housing or bad motor bearings.

Popping or squealing sound. Check for a sticky or frayed belt.

System Check Mode The Diagnostic State provides a set of utilities not intended for use by the consumer. Diagnostic State utilities provide specialized functions for performance evaluation and service. Upon recovery from a power failure, the Drying Cabinet always returns to the Normal-program State. Any Diagnostic State utility active prior to the power failure is effectively cancelled.

To enter the Diagnostic State from the Normal Program State on the upper or lower dryer half of the keypad, press the Signal (+) button and Time Adjust ^ simultaneously for five (5) seconds. Upon entry to the Diagnostic State, the corresponding 7-segment display shows dd. Attempts to enter the Diagnostic State while a dryer cycle is active causes the invalid selection chime to sound.

After 10 minutes of inactivity the diagnostic state will be canceled, and the machine will return to normal operation. To exit the Diagnostic State, press the Signal (-) button.

Either half of the keypad may be used to request the Diagnostic State. Once initiated, all key entries must be made from the same half of the keypad. The LED indicators and 7-segment displays on the remaining half of the keypad are extinguished. Any key presses to the unused portion of the keypad are ignored and sound the invalid selection chime.

Note: Pressing the Off button exits the Diagnostic State and places the control board in the Sleep State.

Diagnostic State Menu

Enter a menu item by using the Time Adjust ^or v arrows to see the letter code desired and press Signal (+). NOTE: * indicates a submenu with further explanation

given below. Menu Description

dd Beginning of Diagnostic State Menu

cc Factory Use Only

cd Clear Diagnostic Codes

ch Clear Help Codes

******cS View Cycle Counts

****dL View Diagnostic Code List

FS Factory Use Only

hL View Help Code List

Lo Logic Board Output Self-test (Display will show PASS PASS or FAIL FAIL

pc Factory Use Only

*Pd Membrane Key Pad Utility

**rd Read Sensor Inputs

***Sc Sub-system Check

SF Software Version

rS Reset to Factory Default Conditions

rd**Read Sensor Inputs This utility allows the user to enable or disable the display of sensor input values. Once enabled, the user exits the Diagnostic State and the 7-segment display used to make the selection alternates between the sensor value and the time remaining. All other features operate as normal. It is not necessary to start a cycle for the sensor value to begin displaying. The user may display lower dryer values on the upper dryer half of the keypad with the converse also allowed.

After exiting the Diagnostic State with the sensor display function enabled, the 7-segment display continuously cycles through a 4-step sequence. Each step lasts 1.5 seconds. The sequence consists of the following: n= appears to indicate that the next value is the time remaining. The time remaining value appears on the display. xx= appears to indicate that the next value is from the selected sensor. Where xx.xx is the item selected from the sensor display menu. The sensor value appears on




Example: 1) To read measured temperature, scroll to rd on the

menu and press Signal (+). 2) Upon entry to the utility, OFF appears on the

display. 3) Using the Time Adjust v arrow button scroll to Ld

menu item from the Table. Note: To exit the utility before running a test, press Signal (-). The display will show rd. To exit diagnostics press, Signal (-) again. The display will show dd. 4) Press Signal (-) twice to initiate the menu item. 5) Time and Temperature are displayed. 6) Press OFF to exit the test. Sensor Display Menu

Menu Description Displayed Value OFF Sensor display disabled NA Ld Lower Dryer Outlet

Temperature Degrees Fahrenheit

Ud Upper Dryer Outlet Temperature

Degrees Fahrenheit

uS Upper Dryer Door Switch

On or OFF (On = door open)

LE Lower Dryer Heater Energized

On or OFF (On = energized)

LS Lower Dryer Door Switch

On or OFF (On = door closed)

*****db Lower Dryer Sensor Bar On or OFF (On = hit detected) SP Spare Thermistor Input Degrees Fahrenheit

Pd*Membrane Keypad Utility To select the Membrane Keypad utility, scroll to Pd on the menu and press Signal (+). Upon entry to the utility, all LED indicators and 7-segment display LED elements illuminate. Pressing each key extinguishes one or more of the keypad indicators or 7-segment display LED elements. All the keys must function properly to extinguish all the LED elements. The LED extinguished may not be adjacent to the keypad pressed. Do not press Signal (-) or you will exit the utility. To exit the utility and return to the menu, press Signal (-). Upon return to the Main Menu, Pd. To check Membrane Pad with ohm meter see chart.

Sc***Upper and Lower Dryer Sub-system Check Utilities To view the Sub-system Check Utility menu, scroll to Sc on the main menu and press Signal (+). To exit the Sub-system Check Utility Menu and return to the Main Menu, press Signal (-) at any of the menu items. Upon return to the Main Menu, Sc appears on the display. Upon entry to the Sub-system Check Utility Menu, SU appears on the display.

Sub System Check Menu Menu Description

Su Beginning of Menu

bo Operate Upper Dryer Blower Motor

Fd Operate Lower Dryer Motor

hr Operate Upper Dryer Heater and Blower (Temp displayed opposite side)

hh Operate Lower Heater and Blower at High Wattage (Temp displayed opposite side)

hL Operate Lower Heater and Blower at Low Wattage (Temp displayed opposite side)

So Operate Upper Dryer Shaker Motor

ho Operate Upper Dryer Blower, Heater and Water Valve

d1 Unused

d2 Operate Wax Motor for Upper Dryer Damper

Diagnostic Codes: The diagnostic/help code information displayed provides information about the machine. Any abnormalities monitored by the board will be identified as either a Help or Diagnostic code. Diagnostic Codes will be logged and stored in permanent memory (maximum nine in the list). A Diagnostic Code is logged when there is a problem with the system. It may be recommended the machine be serviced. Software checks for open or shorted thermistors and door switch failures only during active cycles. Software continuously checks for stuck button conditions. Stuck Button fault detection uses the lower dryer cycle count when logging a diagnostic code. Fault detection logs a code once after initially detecting a fault. A fault must clear before logging additional occurrences.

dL****Accessing Diagnostic Codes To view the Diagnostic Codes List, scroll to dL on the menu and press Signal (+). Upon entry to the utility, SOL appears on the display indicating start of list. Use the Time Adjust ^ (up arrow) and Time Adjust v (down arrow) buttons to step through the list. The display shows End after the last entry in the list is reached. Attempts to step past the beginning or end of the list cause the invalid selection chime to sound.

cd To select the Clear Diagnostic Codes utility, scroll to cd on the menu and press Signal (+). Upon entry to the utility, cL appears on the display. Press Signal (+) again to clear all Diagnostic Codes for both the upper and lower dryer. The message AC appears on the display to indicate All Clear after the clear function completes. To exit the utility and return to the menu, press Signal (-). Upon return to the Main Menu, cd appears on the display.




Diagnostic Codes

rS Reset to Factory Default Conditions

To restore Factory Default settings for the dryer controls, complete the following sequence within one (1) minute.

Step 1 From the Normal Program State, press the Signal (+) button and Time Adjust to enter the Diagnostic State from the upper or lower dryer keypad.

Step 2 Scroll to the rS display on the menu and press Signal (+). The number 004 appears on the display to indicate the number of remaining steps needed to complete the reset sequence.

Step 3 Open and leave open the Lower Dryer Door. The remaining step count decrements to 003 on the display.

Step 4 Press the Time Adjust and Time Adjust at the same time. The remaining step count decrements to 002 on the display.

Step 5 Press the Temperature and Time Adjust at the same time. The remaining step count decrements to 001 on the display.

Step 6 Close the Lower Dryer Door. The remaining step count decrements to 000 once the Factory Default settings have been restored. The "Power On Reset" sequence then executes.

The remaining step count resets to four and the invalid selection chime sounds when any of the following conditions occur:

A reset step is performed out of sequence. An unexpected key combination is entered.

The time window expires. Opening the door to complete the first step marks the beginning of the time window. This function does not clear either of the upper or lower dryer cycle counters. All other parameters stored in non-volatile memory are returned to the Factory Default values. The Reset Utility functions the same regardless of which half of the keypad it is initiated from. Once the utility is initiated, all key combinations must be made from the same half of the keypad used to initiate the utility. The Signal (-) key exits the Reset Utility and returns to the rS display on the main menu. Pressing the Signal (-) key any time prior to completion of the reset sequence cancels the sequence and then returns to the main menu.

Code Description Trigger Action Taken SOL Start of list

1 Lower Dryer Thermistor Short Sensed

If temperature > 200 degrees for 2 minutes.

Check for: - Clogged lint

screen. - Restricted vent

system. Failed thermistor

2 Lower Dryer Thermistor Open Sensed

If the temperature is low with an increase of temperature expected, and no increase occurring after 3 minutes.

Check for: - Low ambient

temperature in room (Below 50F/10C).

- Outside vent damper is stuck open in wintertime.

Loose or open wire terminals

3 Lower Dryer Door Circuit Failure

Low for more than 1 second.

Check for: - Loose or open wire terminals in Door Sense circuit.

4 Not Used 5 Not Used 6 Non Volatile

Memory Problem Detected with integrity of parameters stored in EEPROM memory.

Disregard

8 Stuck Button A button sensed as pressed more than 75 seconds, is assumed as stuck.

Check for: - Run membrane pad check and replace console w/membrane pad if necessary..

9 Not Used 10 Not Used 11 Upper Dryer

Thermistor Short Sensed

If temperature > 200 degrees for 2 minutes.

Check for: - Failed hi-limit

thermostat on steamer.

- Failed thermal fuse on heater.

Failed thermistor 12 Upper Dryer

Thermistor Open Sensed

If the temperature is low with an increase of temperature expected, and no increase occurring after 3 minutes.

Check for: - Low ambient

temperature in room (Below 50oF/10oC).

- Check door vent seals.

Loose or open wire terminals on steamer circuit.

13 Upper Dryer Door Circuit Failure

Low for more than 1 second.

Check for: - Loose or open wire terminals




db*****Sensor Bar Diagnostics Enter The Diagnostic Utilities Menu 1) The controls will not enter the Diagnostic State if a

cycle is active or paused for either dryer. Push the Off key to cancel an active or paused dryer cycle. Push Time Up-arrow and Signal (+) for 5 seconds. dd appears in the display.

2) Use Time Up-arrow and Time Down-arrow to scroll through the utility menu.

3) Scroll to rd and push Signal (+) to enter the sensor display menu. OFF appears on the display to indicate an input sensor has not been selected yet for the Read Sensor Display Function.

4) Use Time Up-arrow and Time Down-arrow to scroll through the input sensor menu.

5) Scroll to db to select the Dryness Bar input for display.

6) With db shown on the display, exit the input sensor menu by pushing Signal (-). rd appears in the display.

7) Push Signal (-) again to exit the diagnostic utility menu and view the sensor bar status.

8) The Display cycles n=x:xx, then db = On with a short across the dryness bars or db = OFF with an open circuit between the dryness bars.

9) The dryer may be operated as normal with the Read Sensor Display active. The n=x:xx portion of the alternating display is the normal time remaining value for the dryer display.

10) The display shows db = On when damp clothing makes contact with the sensor bars.

11) Either half of the membrane switch may be used to display any input with the Read Sensor Display Function. The half of the membrane switch used to enable the Read Sensor Display function also determines where the sensor display appears.

Cancel the Read Sensor Display Function 1) Push the Off key for the upper dryer to place the

upper dryer controls in the Sleep State. The Sleep State extinguishes all the LED indicators and numerical displays.

2) Push the Off key for the lower dryer to place the lower dryer controls in the Sleep State.

3) Placing both upper and lower dryer controls in the Sleep State cancels the Read Sensor Display Function.

Codes Visible To The Consumer. The following help codes could appear on the display and may need further investigation. 1) PF A power failure occurred during an active or

paused cycle. Consumer may push the "Start/Pause" key to resume the interrupted cycle or push the "Off" key to cancel the interrupted cycle and start over with a new cycle.

2) HP The thermistor reading is out of range and the dryer cycle is interrupted. Consumer may push the "Off" Key and attempt to run the cycle again. If the condition persists, a service technician should check for a thermistor malfunction or a wiring problem with the thermistor circuit. Service Technician view the Diagnostic Codes and look for code 1 or 2. See Diagnostic Codes chart.

3) h1 A temperature increase has not been detected on the lower dryer and the dryer advances to Cool-down. Consumer may check for a blocked vent. Service Technician check for heater not functioning, blocked vent, cool air leaking into drum, poor seal between drum and blower, bad connection on igniter sense signal to control board, thermistor malfunction.

4) h11 A shaker assembly neutral fault has been detected. Shaker relay is de-energized and the cycle continues as normal without the shaker. Service Technician check for a bad connection in neutral

circuit to the shaker assembly. Wrinkle Prevent This is not a fault code but a

normal operation signal. During the Wrinkle Prevent phase of the cycle, the output animation shows 1 segment moving around the perimeter of the display. During the continuous tumble portion of Wrinkle Prevent, the animation is constant. After 20 minutes of continuous tumble, the Wrinkle Prevent intermittent phase begins where the dryer tumbles for 10 seconds out of every 5-minute interval. During this phase the display shows the segment moving, and stopping momentarily. This pattern continues until the Wrinkle Prevent phase ends.

cS******View Cycle Statistics To view the Cycle Statistics scroll to cS the menu and press Signal (+). Upon entry to the utility cu appears indicating beginning of menu. Scroll to the menu item you want to view by pressing Time Adjust ^ or Time Adjust v. Enter a menu item buy pressing Signal (+). Cycle Statistics Menu Menu Description cu Beginning of Menu Lc Lower Dryer Cycle Count Lh Lower Dryer Cycle Hours Uc Upper Dryer Cycle Count Uh Upper Dryer Cycle Hours




J1A

J1B

J2A

J2B

112

112

112

112

Membrane Pad Continuity Checks Membrane shown with console tipped forward for service. Manual Membrane Pad Check NOTE: Unplug connector and touch probe of meter to the appropriate pin numbers. Meter will show infinity on open

keys and 500 ohms or less on closed keys.

Location Description Plug Number Pin Number Upper Dryer Cycle Selection Dry Wet Clothes J2B 7,10 Upper Dryer Cycle Selection Refresh Dry Clothes J2B 5,10 Upper Dryer Temp. Selection Up Arrow J2B 7,9 Upper Dryer Adjust Drying Time Increase Time J2B 8,12 Upper Dryer Adjust Drying Time Decrease Time J2B 7,12 Upper Dryer Options Wrinkle Release J2B 7,11 Upper Dryer Options Remove Odor J2B 6,11 Upper Dryer Options Add Fragrance J2B 5,11 Upper Dryer Commands Start/Pause J2B 6,12 Upper Dryer Commands Off J2B 5,12 Lower Dryer Cycle Selection Sensor Dry J1B 5,12 Lower Dryer Cycle Selection Time Dry J1B 6,12 Lower Dryer Cycle Selection Wrinkle Release J1B 7,12 Lower Dryer Cycle Selection Air Fluff J1B 8,12 Lower Dryer Temp. Selection Up Arrow J1B 7,9 Lower Dryer Adjust Drying Time Up Arrow J1B 5,9 Lower Dryer Adjust Drying Time Down Arrow J1B 6,9 Lower Dryer Options Wrinkle Prevent J1B 5,10 Lower Dryer Options Damp Dry Signal J1B 6,10 Lower Dryer Commands Start/Pause J1B 5,11 Lower Dryer Commands Off J1B 6,11 Audible Signal Volume Decrease Volume J1B 8,11 Audible Signal Volume Increase Volume J1B 7,11

Pin Number

Plug Number




Logic Board Connectors

Connector Name

Pin Number

Description Voltage Comment/ Connector Part Number

J1A 1-12 Left Keypad connector A 12 VDC J1B 1-12 Left Keypad connector B 12 VDC J2A 1-12 Right Keypad connector A 12 VDC J2B 1-12 Right Keypad connector B 12 VDC

1 Lower dryer thermistor 5 VDC 2 Lower dryer thermistor 5 VDC 3 Lower dryer moisture sensor 24 VDC 4 Lower dryer moisture sensor 24 VDC 5 Spare thermistor source 5 VDC 6 Spare thermistor return 5 VDC 7 Upper exhaust air thermistor 5 VDC

J3

8 Upper exhaust air thermistor 5 VDC

1 L1 to upper door switch 120 VAC 2 Upper door switch to Lamp 120 VAC

J4

3 Chassis ground to logic board Ground

1 12 VDC power 12 VDC 2 Power Supply Common Common 3 24 VDC power 24 VDC 4 To shaker motor relay coil 12 VDC 5 To upper blower motor relay coil 12 VDC 6 To upper heater relay coil 12 VDC 7 To water valve relay coil 12 VDC 8 To spare relay coil 12 VDC 9 To upper exhaust damper relay

coil 12 VDC

10 To lower heater cycling relay coil 12 VDC 11 To lower heater center-tap relay

coil 12 VDC

J6A

12 To lower dryer motor relay coil 12 VDC

DC connections to Power & Relay Board.

1 VCC from logic board 5 VDC 2 Serial transmit signal 5 VDC 3 Serial receive signal 5 VDC

J10

4 Serial signal common DC GND

1 DC common DC GND 2 Reset Signal 5 VDC 3 Serial transmit signal for logic

board 5 VDC

4 VCC from logic board 5 VDC 5 Serial receive signal for logic

board 5 VDC

J10A

6 VPP from programmer box

1 L1 for use on logic board 120 VAC 2 Upper door switch power to lamp 120 VAC 3 Lower door switch signal 120 VAC 4 Gas igniter sense signal 120 VAC

J11A

5 Neutral for switched 120 VAC signals

120 VACN

120 VAC connections to power & relay board.




Relay Header Connections

Relay Name

Connector Name

Description Voltage

NO L1 to relay 120 VAC K9

COM L1 to lower dryer motor 120 VAC


COM L1 to lower dryer heater center tap 240 VAC


COM L1 to lower dryer 240 VAC

Power and Relay Board Connectors

Connector Name

Pin Number

Description Voltage

1 L1 to shaker motor 120 VAC 2 L1 to upper cabinet lamp 120 VAC 3 Neutral to shaker & lamp assembly 120 VACN

J5

4 Unassigned J6B 1-12 See J6A in Logic Board

Connectors Table 5 & 12 VDC

1 Neutral to Power & Relay Board 120 VACN 2 L2 to Power & Relay Board 120 VAC 3 Gas Igniter Sense 120 VAC 4 Lower Door Switch 120 VAC

J7

5 L1 to Power & Relay Board 120 VAC 1 Relay to upper blower motor 120 VAC 2 Unassigned 3 Unassigned 4 Unassigned 5 Relay connects upper heater to L2 120 VAC

6 Relay to upper dryer damper 120 VAC

7 Spare relay output 120 VAC

8 Relay to water valve 120 VAC

9 Unassigned

J9

10 Relay connects upper heater to L2 120 VAC J11B 1-5 See J11A in Logic Board

Connectors table (Pin #3 is not used).

120 VAC

Note: VACN is the neutral wire of a 120V supply.


WARNING! To avoid risk of electrical shock, personal injury ordeath; disconnect power to unit before servicing.

Disassembly Procedures

Shaker Removal1. Disconnect power supply to unit.2. Disconnect wiring harness.

Lower Door Reversal/Removal1. Disconnect power supply to unit.2. Remove 4 door screws and 4 cover screws from side

opposite hinges.3. Remove hinges from door and cabinet and install

them on desired side.4. Install filler screws and covers.5. Move door strike and catch to opposite side.

Door Hook Removal1. Rotate hooks 1/4 turn counterclockwise to remove




4. Remove center hanger, and remove assembly.

5. Slide Shaker Hangers through the top of the cabinet.The angled edge faces the front of the unit.

Console Removal1. Disconnect power supply to unit.2. Remove the 4 screws located in the drying cabinet

securing the console from behind, one on each sideand two in the middle.

3. Unhook left and right side hanger from Shaker.




Logic Board Removal1. Disconnect power supply to unit.2. Remove Console.3. Unlatch and disconnect the three plug-in connectors

from logic control board, remove ground wire fromthe chassis and carefully remove the four flex circuitconnectors.

Front Access Panel Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove 5 screws securing panel.

3. Roll console out and down.

4. Slide the entire Logic Board to the left, to allow thewhite tabs to align with the elongated slots.




4. Remove Spacer Support.

5. Disconnect wires to door switch.6. Disconnect harness to Sensor and lift Front Panel off

tabs on left and right sides of Base Frame.




Tumbler Drum Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove the Front Panel.4. Remove Belt From Idler Pulley.5. Remove top left screw attaching the Water Dipenser

Housing.

6. Force the plastic flange of the housing to the right andremove Drum

Heater Assembly Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove the Front Panel.4. Remove Belt From Idler Pulley.5. Remove Tumbler Drum.6. Remove 2 screws attaching Heater Assembly.




Relay Board Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove the Front Panel.4. Remove screw, lift front of board up and pull toward

front of machine

Blower and Motor Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove the Front Panel.4. Remove Belt From Idler Pulley.5. Remove Tumbler Drum.6. Remove Snap-Ring and Clamp from Blower Hub.

7. Remove Blower Inlet Cover.

8. Carefully work Blower Wheel off the Motor Shaft.

9. Disconnect and remove Motor Harness.10.Depress Spring Retainer and remove.




11. Rotate motor counterclockwise approx. 45 degrees.Lift up on the back of the Motor and pull out of theFront Support.

Water Valve Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove the Front Panel.4. Remove Hose on back of Water Valve.5. Slide Water Valve Assembly toward front and remove.

Steamer Blower Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove the Front Panel.4. Remove Hose on back of Water Valve.5. Slide Water Valve Assembly toward front and remove.6. Loosen screws securing Blower Assembly and

remove.

7. Loosen screws on mounting plate and remove BlowerAssembly.




Steamer Heater Removal1. Disconnect power supply to unit.2. Remove Console.3. Remove the Front Panel.4. Remove Hose on back of Water Valve.5. Slide Water Valve Assembly toward front and remove.6. Loosen screws securing Blower Assembly and

remove.7. Slide Heater Assembly out the front of unit.


AAAAAppendix ppendix ppendix ppendix ppendix AAAAA


AAAAAppendix Bppendix Bppendix Bppendix Bppendix B

16022785 maytag neptune drying center (dc) repair service manual

Documents

improper service procedures

minor personal injury

important safety information

risk of severe personal

qualified service technician

safety procedures

amana canada product

property damage